L&S Arcbtblk 7075 T6 Ms Buffer Tube

The L&S Arcbtblk 7075 T6 Ms Buffer Tube is a mil-spec buffer tube built from 7075 T6 aluminum—a material choice that delivers serious strength-to-weight for AR platform builds. Whether you're assembling a competition rifle, setting up a duty gun, or fine-tuning a hunting AR, a quality buffer tube is the foundation that houses your buffer and spring, affects recoil impulse, and directly influences how your rifle cycles. This Lead & Steel tube is designed to mil-spec standards, meaning it'll work with standard stocks, grips, and other common AR furniture without compatibility headaches.

7075 T6 aluminum is aircraft-grade material—harder and more durable than standard aluminum—so this tube can handle the cycling demands of high-round-count shooting without deformation. The black finish offers practical corrosion resistance and a clean look that fits any build aesthetic. If you're doing an upper-receiver swap, troubleshooting a reliability issue, or building from a bare lower, having a solid mil-spec buffer tube in your parts bin is smart planning.

Lead & Steel keeps their designs straightforward and functional. There's no marketing fluff here—just a no-nonsense component engineered to spec and built to last through thousands of rounds.

Key Features

• 7075 T6 aluminum construction for superior durability and strength
• Mil-spec design ensures compatibility with standard AR stocks and components
• Black finish for corrosion resistance and aesthetic appeal
• Reliable platform for buffer and recoil spring assembly

Specifications

Frequently Asked Questions

Is this buffer tube compatible with standard AR-15 stocks and components?

Yes. The L&S buffer tube is built to mil-spec standards, which means it's designed to work with any mil-spec compatible stock, grip, and buffer assembly without modification or fitting.

What does 7075 T6 aluminum mean?

7075 T6 is aircraft-grade aluminum alloy in a heat-treated condition. It offers higher strength and hardness compared to standard aluminum, making it more resistant to deformation under the cyclic stress of rifle operation.

What is a buffer tube used for?

The buffer tube is the hollow tube that slides over the receiver extension and houses the recoil spring and buffer. It's a critical part of the AR's recoil system and also serves as the attachment point for your stock.